<template>
  <div>
          <!-- 面包屑导航区 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
    <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
    <el-breadcrumb-item>数据统计</el-breadcrumb-item>
    <el-breadcrumb-item>数据报表</el-breadcrumb-item>
    </el-breadcrumb>

    <!-- 卡包视图区 -->
    <el-card>
         <!-- 为ECharts准备一个具备大小（宽高）的Dom -->
    <div id="main" style="width: 750px;height:400px;"></div>

    </el-card>

  </div>
</template>

<script>
// 引入Echarts
import * as echarts from "echarts" //5.0版本这样引用就没事了
import _ from 'lodash'

export default {
    data(){
        return {
            // 需要合并的数据
            options: {
        title: {
          text: '用户来源'
        },
        tooltip: {
          trigger: 'axis',
          axisPointer: {
            type: 'cross',
            label: {
              backgroundColor: '#E9EEF3'
            }
          }
        },
        grid: {
          left: '3%',
          right: '4%',
          bottom: '3%',
          containLabel: true
        },
        xAxis: [
          {
            boundaryGap: false
          }
        ],
        yAxis: [
          {
            type: 'value'
          }
        ]
      }
            
        }
    },
    created(){

    },
    async mounted(){
        // 基于准备好的dom，初始化echarts实例
        var myChart = echarts.init(document.getElementById('main'));
        const {data : res} = await this.$http.get(`reports/type/1`)
        if(res.meta.status !== 200){
            return this.$message.error('数据获取失败')
        }
         // 指定图表的配置项和数据
         const result = _.merge(res.data,this.options)

                // 使用刚指定的配置项和数据显示图表。
        myChart.setOption(result);

    },
    methods:{
        
    }

}
</script>

<style lang="less" scope>

</style>